MLA

Benjamin West, pinxt., and del W. G. Armstong. Henry Bouquet. 0AD. https://collections.library.yale.edu/catalog/2015592.

APA, 6th edition

Benjamin West, pinxt., & W. G. Armstong, del. (0 C.E.). Henry Bouquet [Intaglio prints]. https://collections.library.yale.edu/catalog/2015592.